United Kingdom · Atlantic Europe
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Local knowledge and community tips for Porthleven
Porthleven is one of the UK's heaviest waves: a powerful right-hand reef break adjacent to the harbour wall on Cornwall's south coast. When a big south-westerly swell hits the shallow reef, it produces thick, grinding barrels that race along the rock ledge. This is a serious, high-consequence wave that has earned national recognition. The harbour wall provides a dramatic spectating platform, making it one of the most photographed waves in Britain.
Needs a large south-westerly groundswell (6ft+ on the open coast) paired with a northerly offshore wind. Best at mid to high tide when water covers the shallowest reef sections. The wave is at its best in the 6-10ft range. Below that it lacks the power to barrel properly. Works primarily in winter (November to March) when the biggest Atlantic storms track across. Classic days might happen only 5-10 times per season.
The take-off is beside the harbour wall over a defined section of reef. The right-hander runs along the reef towards the beach. Positioning is critical: too deep and you are under the lip against the wall; too far out and you miss the wave entirely. Local knowledge is almost essential for your first time.
Extremely high consequence. Shallow reef directly below at all stages of tide. The harbour wall is solid granite and getting swept into it is catastrophic. Powerful currents sweep along the reef. The wave throws with immense force over shallow rock. Injuries are common; broken boards almost guaranteed on bigger days. This is genuinely one of the UK's most dangerous waves. Advanced surfers only.
Park in Porthleven village (limited spaces on harbour front, or car park up the hill). Walk along the harbour wall to assess conditions. Entry is from the beach section east of the harbour wall, involving a tricky paddle around and into position. Exit can be difficult in bigger surf.
A tight group of local chargers who have earned their position through years of commitment. This is not a spot to rock up and compete for waves. The takeoff zone is small and the locals are possessive for good reason, as positioning mistakes have serious consequences. Visitors should show respect, take what comes, and never snake.
Watch from the harbour wall before even considering paddling out. Study the takeoff, the currents, and where the local crew are sitting. If this is your first time, go on a smaller day (6ft) rather than a maxing swell. The wave demands respect and local knowledge. Do not surf here alone. The Ship Inn on the harbour is the traditional debrief spot.
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Based on historical weekly averages
Combining historical conditions with school holiday crowd pressure to find the sweet spot.
How busy each week is based on school holiday overlap from feeder markets.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 28 days of logged conditions.
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Create Profile →Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
We compare the 7-day forecast to the last 5 years of marine data for the same week at Porthleven. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical mid-June.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
The best week for surf at Porthleven is the week of 23 November (score 3/5) with low crowds.
Barely any swell. Not much to work with today. Short-period chop. The waves lack any real push. Strong onshore blowing everything out. Give it a miss. Conditions improving through the afternoon. Not enough swell to get this spot firing properly.
Heads up: rocks exposed at low tide, and cold-shock risk.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
Moderate water clarity: ~8m visibility
Updated 10:32
Daily scores over the last 12 months at Porthleven